Septic tank



Nov. 15, 1927.

l. GUTMAN SEPTIC TANK Filed Sept, 17. 1925 INVENTOR Mam 6 Wm m mm. w g m Kw m a Patented Nov. 15, 1927.

UNITED STATES IRWIN GUTMAN, F PITTSBURGH, PENNSYLVANIA.

SEPTIC TANK.

Application filed September My invention relates to septic tanks for the disposal of sewage, and its general ob]ect is to provide a sewage disposal structure of simple form which may be made of standard tile sections, and which may be easily installed.

Another object of my invention is to provide a tank structure of such form that the danger of inaccurate positioning of the parts is reduced to a minimum, and wherein certain of the parts are rigidly held in assembled position.

One form which my invention may take is shown in the accompanying drawing, wherein Fig. 1 is an elevational view, on an enlarged scale, of a portion of the apparatus; Fig. 2 is a fragmentary view taken at right angles to that of Fig. 1; Fig. 3 is a plan view of a portion of the apparatus of Fig. 1, with the cover removed, and Fig. i is a sectional view, in elevation, showing two sewage treating chambers in assembled relation.

In Fig. 1 I have shown an inlet or sludge chamber 5 that may be made of clay prodnot, such as tile. The tile 5 is provided with a bottom 6, preferably of concrete, which interlocks with grooves 7 formed adjacent to the lower end of the tile. A cover 8 is provided for the chamber 5, and dowel pins 9 effect interlocking engagement between the cover and the tile to hold the cover in position The chamber 5 is preferably of cylindrical form, and is provided with slots or openings that extend downwardly from its upper edge and whose walls 10 are vertical. The walls 10 are spaced apart a distance substantially equal to the outside diameter of the body portions of the conductor pipes 11 and 12. The openings are also provided with curved walls, as indicated at 13 and 1 1 which are continuations of the walls 10 and are chamfered so as to flare inwardly. This curved and flared arrangement provides seats for the bells or hubs of the conduitpipes 11 and 12. In assembling the conductor pipes with the tank, the conductor pipes are lowered into the vertical slots, the bell portions being extended into the chamher a distance sufficient to permit such bell portions to clear the narrow vertical Walls 10 of the slots, as indicated in Fig. 3 by dotted lines a. IVhen a conductor pipe has been fully lowered in the opening 10, it is drawn backward to the position indicated by 17, 1925. Serial No. 56,882.

dotted lines I), and will occupy the position shown more clearly in Fig. 1. In this position the bell protrudes a little, if any, beyond the inner face of the tile 5, and is firmly locked against withdrawal radially of the tile, by reason of its engagement with the beveled portions 13.

Baflies 15 are provided so that there will not be excessive agitation of the sewage within the chambers. These baliies may consist of half tile sect-ions assembled with the tile 5, while they and said tile are green or unburned. Clay putty may then be applied along the lines of juncture so that when the article is fired, the bafiie members 15 will be burned fast to the body portion.

In Fig. 4 I have shown the tank 5 as a sludge or inlet chamber into which the sewage to be treated is introduced through the conduit 11. An etfiuent or outlet tank 5", constructed in the same manner as tank 5, is also provided. The tanks are connected by the conductor tile 12 which has a hub or hell at each end, and interlocks with the two chambers 5 and 5*, as above described. From the tank 5 the treated liquid passes through a conductor 16, to the drainage field or to another tank.

By the arrangement above described, it will be seen that tanks 5 and 5 are firmly locked together by the conductor 12 and to the tiles 11 and 16, so that slight settling or misalignment will not result in the opening of joints. Furthermore, definite seats are provided for the tile ends, by reason of the belled mouths and flared openings above described, so that when a belled mouth is seated within its opening, the workmen will know that the conductor does not extend so close to a bafiie 15 as to retard the flow of sewage. In the arrangements heretofore employed. trouble has sometimes arisen by reason of inexperienced workmen assembling the conductors with the tanks in such manner that the conductors either projected too far into the tank or did not extend a sutlicient distance into the opening to properly seat therein.

I claim as my invention:

1. Septic tank structure comprising a plurality of receptacles mounted adjacent to one another and each provided with an inwardly flared opening, and a conduit having rigidly connected belied ends, each of said ends seating against the wall of one of said flared openings.

Septic tank structure comprising a plurality 01" receptacles mounted adjacent to one another and each provided with an opening through its side Wall, and a conduit extending through said openings and having rigidly connected belied ends, each of said ends seating against the inner Wall face of one of the receptacles, to hold said receptacles against relative spreading movement.

3. Septic tank structure comprising a receptacle having an opening in one wall thereof, a bafiie within the receptacle and disposed opposite to said opening, a conductor of a length greater than the distance between said bafiie and said opening, extending outwardly through said opening and having a belled end engaging the inner wall face of the receptacle, the opening being open at its upper side to permit the conductor to be dropped into place.

4. Septic tank structure comprising a receptacie having a vertical siot in its upper end, 1e said slot being fared inwardly adjacent to its lower end, and a belled end conductor extending through said slot and its said end seated against the wall of the slot, the said slot being open at its upper side, to permit the conductor to be dropped into place.

In testimony whereof I, the said IRWIN G TMAN, have hereunto set my hand.

IR'WIN GUTMAN. 

